Case Reports|1 December 1958

Abstract

Every male native-born Puerto Rican incarcerated in the United States Penitentiary at Lewisburg, Pennsylvania (population, 1,200), during the two years 1954-1956, has been examined in an attempt at better evaluation of the incidence of Schistosoma mansoni. Sixteen men were found to have spent the major part of their childhood and adolescence on the island. Two still harbored the parasite. Not included in this report is a third case, that of a 30 year old Spanish-born (Basque-Gurpuzcoa) male who may have acquired the infection in Venezuela during the years 1948 to 1952.